Abstract: The present invention relates to a nucleic acid molecule for an allele-specific editing of the ELANE gene, a vector comprising said nucleic acid molecule, a composition comprising said nucleic acid molecule or vector, a method in vitro for an allele-specific editing the ELENE gene in biological material including genetic material encoding said ELENE gene, and to a method for the prophylaxis and/or treatment and/or examination of a disease in a living being.

Abstract: A composition is for the targeted knockout of a gene on double-stranded DNA in a biological cell. A method is for the targeted knockout of a gene on double-stranded DNA in a biological cell. A preparation includes a biological cell prepared in vitro. The biological cell includes a gene on double-stranded DNA, which is knocked-out in a targeted manner. A kit is for the targeted knockout of a gene on double-stranded DNA in a biological cell. Another method is for treating a subject afflicted with a disease associated with a mutated gene. Nucleic acid molecules can be a component of the composition and methods.